Las Vegas police have asked soccer star Cristiano Ronaldo to submit a DNA sample as part of their investigation into rape allegations made against him. The Juventus forward has vehemently denied the accusations -- with his lawyer, Peter Christiansen, telling AFP the request was standard procedure. The Las Vegas Metropolitan Police Department said it had made an official request to Italian authorities, adding it is “taking the same steps in this case as in any other sexual assault to facilitate the collection of DNA evidence.”